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IP blacklist ยท Barracuda Networks

Barracuda Reputation Block List (BRBL) lookup and removal

IP reputation list used by Barracuda email security appliances and cloud filters worldwide. Corporate recipients behind Barracuda reject mail from listed IPs. Check your IP below, then follow the removal steps if it is listed.

Checks run by DNS only. Nothing is sent from or to your domain.

How to get removed from Barracuda Reputation Block List (BRBL)

Barracuda Reputation Block List (BRBL) has a self service removal form. Fix the cause first, then submit the listed IP or domain.

  1. 1 Look up the IP address on the operator's site and read the listing reason and return code.
  2. 2 Find the cause on the sending host: a compromised mailbox or script, an open relay, a missing or generic PTR record, a sudden volume spike or a stale list hitting spam traps.
  3. 3 Fix the cause before asking for removal. A list that relists you quickly usually takes longer to remove you the second time.
  4. 4 Open the removal page (https://www.barracudacentral.org/rbl/removal-request), enter the listed IP address and follow the confirmation steps (often an email link).
  5. 5 Re-check the IP address here after the next zone update to confirm the listing is gone. Monitoring alerts you if it comes back.

Barracuda Reputation Block List (BRBL) at a glance

OperatorBarracuda Networks
DNS zoneb.barracudacentral.org
ListsIP addresses
Impact on deliveryHigh
RemovalRemoval request form
Removal pagewww.barracudacentral.org/rbl/removal-request
IPv6IPv4 only

Frequently asked questions

How do I check if I am listed on Barracuda Reputation Block List (BRBL)?

Enter your sending IP in the check box on this page. We query b.barracudacentral.org by DNS and show the result with the return code and what it means.

How do I get removed from Barracuda Reputation Block List (BRBL)?

Barracuda Reputation Block List (BRBL) has a self service removal form. Fix the cause first, then submit the listed IP or domain.